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Flura [38]
3 years ago
10

What are the roots of the equation x^2+4x-5=f(x)

Mathematics
1 answer:
enyata [817]3 years ago
3 0

Answer:

The roots are -5, 1.

Step-by-step explanation:

f(x) = x^2 + 4x - 5

The roots of a function are also the Ox intercepts, so basically we're finding when is the function equal to '0'.

x^2 + 4x - 5 = 0\\(x-1)(x+5) = 0\\x_1 = 1, x_2 = -5

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A train travels at a speed of 58.6 km/h. Express this speed in<br>a. m/s<br>b. cm/min​
tekilochka [14]

Answer:

16.27778 m/s

97666.6667 cm/min

Step-by-step explanation:

<u>a. To convert km/hr into m/sec, multiply the number by 5 and then divide it by 18.</u>

m/s = (58.6 * 5) /18 = 16.27778 m/s

<u />

<u>b. 1 Kilometer/Hour = 1666.66666666667 Centimeter/Minute</u>

so 58.6 * 1666.666 =97666.6667 cm/min

3 0
2 years ago
Which expression is equivalent to 1 over 5 m − 20?
laiz [17]

1

-----------

5m -20


factor out a 5 in the denominator

1

-----------

5 (m -4)


Choice A

7 0
3 years ago
Convert 9432 feet to miles
Papessa [141]

Answer:

<h2><u><em>1.786364  miles</em></u></h2>

Step-by-step explanation:

                     Convert 9432 feet to miles

                      1 feet = 0,000189394 miles

so

9432 *  0,000189394 =

<u><em>1.786364</em></u>

5 0
2 years ago
Read 2 more answers
I need help plzzzz!!!!!!!!:)
Mila [183]

Answer:

B: y = -2/3x - 10/3

Step-by-step explanation:

The point is at (-2,-2), therefore when you input -2 into the desired equation, it should yield -2 as our output. If we use the equation B, the equation becomes

-4/3 - 10/3 which is -6/3. After dividing it we get -2 as the output.

To find the line yourself we use the point slope formula

y - y1 = m(x - x1)

The line is parallel to the one on the graph so the slope or <em>m</em> is equal to -2/3

We input the coordinates we want for y1 and x1.

y - (-2) = -2/3 (x - (-2))

y + 2 = -2/3x - 4/3

y + 6/3 = -2/3x - 4/3

y = -2/3x - 10/3

3 0
2 years ago
Read 2 more answers
*NO 194 39% 13:08 Pilih jawaban yang paling tepat Segitiga PQR dan segitiga XYZ 5 poin merupakan dua segitiga yang kongruen. Bes
Illusion [34]

Answer:

Option d. PQ = YZ

Step-by-step explanation:

<u><em>The question in English is</em></u>

Choose the most appropriate answer. The PQR triangle and the XYZ triangle are two congruent triangles. The angle P = the angle Y and PR = YX. Side pairs of the same length are ... a. PQ = XZ b. QR = YZ c. QR = XY d. PQ = YZ

we know that

If two triangles are congruent, then its corresponding sides and its corresponding angles are congruent

Corresponding sides are named using pairs of letters in the same position on either side of the congruence statement

so

we have that

m\angle P=m\angle Y

PR=YX

so

Triangle PQR is congruent with Triangle YZX

That means

<em><u>Corresponding angles</u></em>

m\angle P=m\angle Y

m\angle Q=m\angle Z

m\angle R=m\angle X

<u><em>Corresponding sides</em></u>

PQ=YZ\\QR=ZX\\PR=YX

8 0
3 years ago
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